Auto Bell Ring Timer SCH/Factory/Church

This automatic bell timer product designed with high performance microcomputer chip, it can automatically switch on the bell according to the fixed time, and realize automatic ring with max. 80 times one day. it is widely used in school, factory and etc. specifications: working voltageac240v timing error 0.5s/dayload capacityresistance 25a temperature -10c~+50c dimension126×88×51mmmax time length 1s~23h59m59svoltage scope85%~110%consumed power<4wrelative humidity<95% 6 buttons, "mode" "sele" "+" "-" "auto/man" "reset" modefunctional menu. click it and enter program state. it can select from tc, prog, er tl. press it for 3s, it will return to the clock state.seleparameter optional. under functional menu, click it and select the parameter you want, and the chosen one is flashing. +up adjustment. upwards number for the chosen p